ASSOCIATE-CLOUD-ENGINEER Question #253: Real Exam Question with Answer & Explanation

Question

You want your application hosted on a VM to fetch metadata of that instance. Which command will help you to fetch it?

Options

• Acurl metadata.google.internal/compute-metadata/v1/
• Bcurl <instance-private-ip>/metadata/v1/
• Ccurl metadata.google.internal/computeMetadata/v1/
• Dcurl internal.googleapi.com/computeMetadata/v1/

Explanation

To fetch metadata from a Google Cloud VM instance, applications should use the specific internal domain metadata.google.internal and the /computeMetadata/v1/ path with the appropriate Metadata-Flavor header.

Common mistakes.

• A. The path compute-metadata with a hyphen is incorrect; the correct path uses camel case computeMetadata.
• B. Directly querying the instance's private IP for metadata is not the standard or recommended method; the special internal DNS name metadata.google.internal is used.
• D. The domain internal.googleapi.com is used for other internal Google APIs, not specifically for fetching instance metadata from a VM itself.

Concept tested. Accessing Google Cloud instance metadata

Reference. https://cloud.google.com/compute/docs/storing-retrieving-metadata#default

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